WO2019037729A1

WO2019037729A1 - Call system for critical patient

Info

Publication number: WO2019037729A1
Application number: PCT/CN2018/101615
Authority: WO
Inventors: 陈梅芬; 仵博; 李文莉; 蔡铁峰
Original assignee: 深圳职业技术学院
Priority date: 2017-08-25
Filing date: 2018-08-22
Publication date: 2019-02-28
Also published as: US10902949B2; CN107616797A; US20200194118A1

Abstract

A call system (2) for a critical patient is a head-mounted device having an aerial attitude sensor and a photoelectric displacement sensor, said system captures the trajectory of the motion of a user's head by means of the aerial attitude sensor, detects frequency information of eyelid blinks by means of the photoelectric displacement sensor, and transmits the collected information to a patient end display screen by Bluetooth, achieving awakening of the patient end display screen, activating a scrolling menu and selecting a call service request. The nurse station display screen receives and displays the patient call request for the medical staff to view and promptly care for the patient on the basis of the call request from the patient.

Description

Critical patient call system

Technical field

The present invention relates to a patient call system, particularly a call system for critically ill patients.

Background technique

The ward call system is an emergency call tool that the patient requests the medical staff to diagnose or care. The patient's request is quickly transmitted to the doctor or nurse on duty. The existing call system is mainly used by the patient to press a button to realize the call, and is not suitable for the inconvenience. In severe cases, the single way of calling does not enable the medical staff to quickly understand what kind of care the patient needs. After receiving the call signal, the medical staff must further communicate with the patient to confirm the specific needs of the patient, and the work efficiency is low, even if there is a voice call system. It is for the patient to communicate with the medical staff in real time, but it is not suitable for the critically ill patients who have language barriers and the body is extremely weak and cannot speak the language correctly. At the same time, the voice input will affect other patients.

Summary of the invention

The present invention provides a critical patient call system that overcomes the deficiencies described in the background.

The technical solution adopted by the present invention to solve its technical problems is:

The present invention includes a head mounted device and a call system body, the call system body including a head motion detecting module, an eye motion detecting module, a communication module, and a power supply module; the head motion detecting module collects a head through an air attitude sensor The relative change of the position, and the head position change signal is sent to the patient end display screen through the communication module, so that the screen cursor of the patient end display screen changes synchronously, and the function of waking up the patient end display screen by the cursor to activate the scrolling menu mode is activated; The eye movement detecting module collects the distance and time of the eyelid movement by the photoelectric displacement sensor, and transmits the distance and time change signal of the eyelid movement to the patient end display screen through the communication module, when the distance of the eyelid movement reaches a preset distance, and When the time is greater than the preset time, it is determined that the function of the confirmation key is valid, and the function of selecting different services in the scroll screen menu is realized by the confirmation key; the head position change signal and the eyelid collected by the head motion detection module by the communication module via Bluetooth The distance moved by the eyelid collected by the detection module The time change signal is sent to the patient display, the wake-up display is activated, the scrolling menu mode is activated, and the functions of different service requirements are selected. The patient display is installed on the patient bed above the patient's head, and the patient-selected call service is wired. Or the wireless network sends the display to the nurse station; the power supply module supplies power to the head motion detection module, the eye movement detection module, and the communication module.

The head mounted device of the present invention includes, but is not limited to, glasses, a hat, an earphone, a hair clip, a hairpin, a headband, and the call system body is detachably or non-detachably mounted on the head mounted device.

The intensive patient call system body of the invention also has a charging interface, a power switch, an eye movement detection collection port collection port, a Bluetooth code switch, a Bluetooth code indication, a head motion detection collection port, a charging interface, a power switch, and a Bluetooth pair. The code switch and the Bluetooth code indication are disposed on a side of the call system body, and the eye movement detection collection port is disposed at a position on the body of the call system facing the human eye.

The head mounted device of the present invention is eyeglasses having a frame and a temple, and the lower end of the call system body has a connection bracket, and the connection bracket is detachably mounted on the frame and/or the temple.

The head position change signal of the present invention includes relative change signals of up, down, left, right, and/or tilt of the head.

The eyelid detecting module of the present invention is more specifically: the type of the photoelectric displacement sensor is CC2540, and the 1 leg is a serial data output end and the Bluetooth connection of the communication module realizes SPI serial data output, and the 3 pin reset end Realize reset with Bluetooth connection, SPI chip select with 4-pin chip selection and Bluetooth connection, SPI serial clock with 5-pin serial clock terminal and Bluetooth connection, SPI serial data input with 8-pin serial data input and Bluetooth connection The 2 pin is the photodiode input terminal, the 6 pin is the power ground, and the 7 pin is the power terminal.

The patient end display screen of the invention is more specifically: the patient end display screen is a touch and cursor dual use liquid crystal screen, and the touch mode adopts a window menu, and the required function keys are displayed on the window for use by the accompanying staff, and the cursor mode adopts a scrolling menu. For patient use.

The communication module of the present invention is more specifically: the Bluetooth model is CC2540, the photoelectric displacement sensor and the air attitude sensor communicate through the SPI serial port of the Bluetooth CC2540, and the 1-pin digital grounding, 10, 39-pin digital power supply End, 40-pin power supply decoupling, 21, 24, 27-29, 31-pin analog power supply, 5-6, 37-38-pin SPI serial port, 20-pin reset terminal, 22-23 pin external 32MHz crystal oscillator, 32 -33 feet external 32.768KHz crystal oscillator, 25-26 foot antenna end, 18-pin code switch, 19-pin indicator, 30-pin reference current setting terminal.

The power supply module of the present invention is more specifically: the power supply module includes a linear charge management controller MCP73831, a voltage regulator RT9193, and a common cathode diode; the linear charge management controller MCP73831 has a pin 1 and a 2 pin connected in series and then connects the power terminal and the capacitor. C101, 3 pin series resistor R101 and LED D101 are connected in series with 4 pins grounded, 5 pins are not connected, 6 pins are connected with series connected 7 pins and 8 pins through capacitor 102. D102 is a common cathode diode to meet charging and power supply simultaneously. D101 is a light-emitting diode as a charging indicator, SW1 is a power switch, BAT is a battery interface, voltage regulator RT9193 and peripheral circuits form a voltage regulator circuit, voltage regulator RT9193 pin 1 and capacitor C105, capacitor C106, resistor R102, One end is connected, the other end of the capacitor C105 and the capacitor C106 is connected to the ground end, and the other end of the resistor is connected to the power end.

The invention has the beneficial effects of helping the critically ill patients to realize the call through the head movement and the eye movement, and the head-mounted device is convenient to carry as an auxiliary tool, can be disassembled and installed between different head-mounted devices, and the applicable wearing head The wide range of devices and applicable scenes; the invention is applicable to critically ill patients with inconvenient movements, and the service demand of the call is clear, and the work efficiency of the medical staff is improved; the patient is compared with the voice call system. The medical staff can communicate in real time, and the demand expression can be embodied without language input. It is suitable for the critically ill patients whose language expression is impeded and the body is extremely weak and cannot be expressed in a normal language. At the same time, the invention does not affect other patients. The present invention uses Bluetooth communication to realize the call. Patients are protected from traditional wired communications and have a high degree of freedom.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, a critical patient call system of the present invention is not limited to the embodiments.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of the operation of the present invention.

2 is a circuit diagram of a critical patient call system according to a preferred embodiment of the present invention;

3 is a circuit diagram of a power supply module according to a preferred embodiment of the present invention;

Figure 4 is a perspective view of a pair of glasses according to a preferred embodiment of the present invention;

Figure 5 is a second perspective view of a pair of glasses in accordance with a preferred embodiment of the present invention.

Detailed ways

Referring to FIG. 1 , the working principle of the intensive patient call system of the present invention is to convert the relative position of the head position and the distance and time of the eyelid movement into electrical signals, and then send the electrical signals through Bluetooth. To the patient display, the patient-selected call service needs are transmitted to the nurse station display through a wired or wireless network, and the medical staff cares for the patient according to the patient's needs.

Referring to FIG. 4 and FIG. 5, a critical patient call system of the present invention includes a head mounted device and a critical patient call system body. In this embodiment, the glasses 1 are head mounted devices, and the glasses 1 include a frame. 11 and the temple 12; the call system body 2 is detachably connected to the upper end of the frame 11 and the temple 12 via a bracket 5; the critical patient call system device 2 includes a charging interface 221, a power switch 222, The eye movement detection collection port collection port 211, the Bluetooth code matching switch 231, the Bluetooth pair code indication 232, the head motion detection collection port 233, wherein the charging interface 221, the power switch 222, the Bluetooth code switch 231, the Bluetooth code indication 232 The eye movement detection collection port 211 is disposed on the call system body 2 at a position on the one side of the call system body 2; the solution is applicable to different sizes, different uses, and different scenes. Various glasses.

The critical patient calling system 2 includes a head motion detecting module 3, an eye motion detecting module 4, a communication module 5, and a power supply module 6; the head motion detecting module 3 collects a relative change of a head position through an air attitude sensor. The relative change includes a relative change signal of the top, bottom, left, right and/or tilt of the head, and sends a head position change signal to the computer through the communication module 5, so that the cursor of the patient display screen changes synchronously, and wakes up by the cursor. The patient side display screen activates the function of the scrolling menu mode; the eye movement detecting module 4 collects the distance and time of the eyelid movement by the photoelectric displacement sensor, and sends the distance and time change signal of the eyelid movement to the computer through the communication module 5, When the moving distance reaches the closed eye distance and the time is longer than the blink time, it is determined that the confirmation key function is valid, and the function of selecting different services in the scroll screen menu is realized by the confirmation key; the communication module 5 detects the head motion through the Bluetooth. The head position change signal collected by the module 3 and the eyelid collected by the eye movement detecting module 4 The moving distance and time change signal is sent to the patient end display to wake up the patient display, activate the scrolling menu mode, and select the function of the call service. The patient display transmits the service request of the patient call to the wired or wireless network. The nurse station display screen is provided for the medical staff to view and timely care for the patient according to the call request issued by the patient; the power supply module 6 supplies power to the head motion detection module 3, the eye movement detection module 4 and the communication module 5.

In this embodiment, the circuit schematic diagram of the critical patient call system is shown in FIG. 2, including three integrated circuits: photoelectric displacement sensor A5030, aerial attitude sensor MPU6000, and Bluetooth CC2540.

The photoelectric displacement sensor A5030 and peripheral components constitute an eye movement detection module for realizing the patient terminal display confirmation key, and selecting the function of the required care service through the confirmation key; the 1 pin is the serial data output terminal and the 37 pin of the Bluetooth CC2540. The connection realizes SPI serial data output, the 3-pin reset terminal is connected with the 20-pin connection of the Bluetooth CC2540, the 4-pin chip selection terminal and the Bluetooth CC2540 6-pin connection realize SPI chip selection, the 5-pin serial clock terminal and the Bluetooth CC2540 5 The pin connection realizes the SPI serial clock, the 8-pin serial data input terminal is connected with the 38-pin of the Bluetooth CC2540 to realize the SPI serial data input, the 2 pin is the photodiode input terminal, the 6-pin is the power ground, and the 7-pin is the power terminal; When the user's upper eye is moving, the photoelectric displacement sensor A5030 collects the distance and time of the eyelid movement. When the moving distance reaches the closed eye distance and the time is greater than 500 milliseconds, it is determined that the confirmation key function is valid, and the selection scroll screen is realized by the confirmation key. The functionality of the different services in the menu.

The air attitude sensor MPU6000 integrates a 3-axis gyroscope, a 3-axis accelerometer, a gyroscope and an accelerometer with three 16-bit ADCs respectively, converting the measured analog quantity into an outputable digital quantity, the air attitude sensor MPU6000 and The peripheral component constitutes a head motion detecting module for realizing the cursor positioning of the patient display screen, the function of waking up the patient end display by the cursor, and the function of the scrolling menu mode; the external clock input of the 1st foot of the air attitude sensor MPU6000, 6-pin I2C main serial data is not used, 7-pin I2C main serial clock is not used, 8-pin and Bluetooth CC2540 6-pin connection realize SPI chip selection, 9-pin and Bluetooth CC2540 37-pin connection realize SPI serial data output. 10-pin calibration filter capacitor connection, 11-pin frame sync digital input not used, 12-pin interrupt digital output not used, 13-pin power supply, 18-pin power ground, 19, 21-22 feet reserved unused, 20-pin charge pump Capacitor connection, 23 feet and Bluetooth CC2540 5 pin connection to achieve SPI serial clock, 24 feet and Bluetooth CC2540 38 pin connection to achieve SPI serial data input, 2-5, 14-17 feet are not connected; the circuit diagram The air attitude sensor MPU6000 communicates with the Bluetooth CC2540 through the SPI serial port. When the head is moved, the air attitude sensor MPU6000 collects relative changes of the head up, down, left, and right, and sends the change signal to the patient end display screen to make the screen The cursor changes synchronously, and the function of scrolling the menu mode is activated by the cursor to wake up the patient display.

The Bluetooth CC2540 and peripheral components form a communication module for wireless communication functions, 1-pin digital grounding, 10, 39-pin digital power supply, and 40-pin power supply decoupling. 21, 24, 27-29, 31-pin analog power terminal, 5-6, 37-38 pin SPI serial port, 20-pin reset terminal, 22-23 pin external 32MHz crystal oscillator, 32-33 pin external 32.768KHz crystal oscillation , 25-26 foot antenna end, 18 foot code switch, 19 pin indicator, 30 pin reference current setting terminal.

The air attitude sensor MPU6000 and the photoelectric displacement sensor A5030 communicate with the Bluetooth CC2540 through the SPI serial port, the middle attitude sensor MPU6000 issues the cursor movement positioning signal, the photoelectric displacement sensor A5030 sends a function confirmation signal, and the Bluetooth sends the signal to the patient terminal display to complete the wakeup of the patient. The side display activates the scroll menu mode and selects the function of the call service.

The circuit schematic diagram of the power supply module 6 of the critical patient call system in this embodiment is shown in FIG. 3. The linear charge management controller MCP73831 and the peripheral circuit constitute a lithium battery charge management circuit, and the linear charge management controller MCP73831 has 1 pin and 2 The pin is connected in series and then connected to the power terminal and the capacitor C101 to realize the input end filtering; the 3-pin series resistor R101 and the LED D101 are connected in series with the 4-pin grounding, the 5-pin is not connected, and the 6-pin is connected to the 7-pin and 8-pin in series by the capacitor C102. D102 is a common cathode diode, which can meet the charging and power supply simultaneously. D101 is the LED as the charging indicator, SW1 is the power switch to realize the virtual mouse switch, BAT is the battery interface to access the battery; voltage adjustment The RT9193 and the peripheral circuit form a voltage stabilizing circuit. The pin 1 of the RT9193 is connected to one end of the capacitor C105, the capacitor C106, and the resistor R102. The other end of the capacitor C105 and the capacitor C106 are connected to the ground, and the other end of the resistor and the power supply are connected. The terminal is connected to realize the output end filtering; the 2 pin is the input terminal connected with the capacitors C102 and C103 which have been connected in parallel to realize the input end filtering; the power supply 6 is a block head motion detection module 3, the eyelid blink detection module 4, the communication module 5 power.

The above embodiments are only used to further illustrate a critical patient call system of the present invention, but the present invention is not limited to the embodiments, and any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are All fall within the scope of protection of the technical solution of the present invention.

Claims

A critical patient call system, comprising: a head mounted device, a call system body, a patient display, and a nurse station display;

The call system body includes a head motion detection module, an eye movement detection module, a communication module, and a power supply module;

The head motion detecting module collects the relative change of the head position through the air attitude sensor, and sends the head position change signal to the patient end display screen through the communication module, so that the screen cursor of the patient end display screen changes synchronously, and is realized by the cursor. Awaken the patient display and activate the function of scrolling menu mode;

The eye movement detection module collects the distance and time of movement of the eyelid through the photoelectric displacement sensor, and sends the distance and time change signal of the movement of the eyelid to the display screen of the patient through the communication module, and when the distance moved by the eyelid reaches a preset distance, When the time is greater than the preset time, it is determined that the function of the confirmation key is valid, and the function of selecting different services in the scroll screen menu is realized by the confirmation key; the head position change signal collected by the head motion detection module by the communication module is The distance and time change signal of the eyelid movement collected by the eye movement detection module is sent to the patient end display screen to realize the function of waking up the display screen, activating the scrolling menu mode, and selecting different service requirements;

The patient end display is installed on the patient bed above the patient's head, and the patient selected call service is sent to the nurse station display through a wired or wireless network; the power supply module is a head motion detection module, an eye movement detection module, and a communication The module is powered.
A critically ill patient call system according to claim 1 wherein:

The head mounted device includes glasses, a hat, an earphone, a hair clip, a hairpin, a headband, and the call system body or portion is detachably mounted on the head mounted device.
A critically ill patient call system according to claim 1 wherein:

The call system body further has a charging interface, a power switch, an eye movement detection collection port, a Bluetooth code switch, a Bluetooth code indication, a head motion detection collection port, a charging interface, a power switch, a Bluetooth code switch, and a Bluetooth pair. The code indication is disposed on a side of the call system body, and the eye movement detection collection port is disposed at a position on the body of the call system facing the human eye.
A critically ill patient call system according to claim 2, wherein:

The head mounted device is glasses, the glasses have a frame and a temple, and the lower end of the call system body has a connection bracket, and the connection bracket is detachably mounted on the frame and/or the temple.
A critically ill patient call system according to claim 1 wherein:

The head position change signal includes relative change signals of up, down, left, right, and/or tilt of the head.
A critically ill patient call system according to claim 1 wherein:

The model of the air attitude sensor is MPU6000, and the 8-pin chip selects the Bluetooth connection of the communication module to implement SPI chip selection, the 9-pin serial data output and the Bluetooth connection realize SPI serial data output, and the 23-pin serial clock and Bluetooth connection realizes SPI serial clock, 24-pin serial data input and Bluetooth connection realize SPI serial data input, 10-pin calibration filter capacitor connection, 13-pin power supply terminal, 18-pin power supply ground, 20-pin charge pump capacitor connection.
A critically ill patient call system according to claim 1 wherein:

The model of the photoelectric displacement sensor is CC2540, and the 1 pin is a serial data output terminal and the Bluetooth connection of the communication module realizes SPI serial data output, the 3-pin reset terminal and the Bluetooth connection realize reset, and the 4-pin chip selects and Bluetooth connection realizes SPI chip selection, 5-pin serial clock terminal and Bluetooth connection realize SPI serial clock, 8-pin serial data input terminal and Bluetooth connection realize SPI serial data input, 2 pin is photodiode input terminal, 6-pin is Power ground, 7 feet is the power end.
A critically ill patient call system according to claim 1 wherein:

The patient display is a touch and cursor dual-use LCD screen. The touch mode uses a window menu to display the desired function keys on the window for use by the accompanying staff. The cursor mode uses a scrolling menu for the patient to use.
A critically ill patient call system according to claim 1 wherein:

The model of the Bluetooth is CC2540, and the photoelectric displacement sensor and the air attitude sensor communicate through the SPI serial port of the Bluetooth CC2540, and the 1-pin digital grounding, the 10, 39-pin digital power terminal, and the 40-pin power supply are decoupled. 24, 27-29, 31-pin analog power terminal, 5-6, 37-38 pin SPI serial port, 20-pin reset terminal, 22-23 pin external 32MHz crystal oscillator, 32-33 pin external 32.768KHz crystal oscillator, 25-26 foot antenna end, 18 foot code switch, 19 pin indicator, 30 pin reference current setting terminal.
A critically ill patient call system according to claim 1 wherein:

The power supply module comprises a linear charging management controller MCP73831, a voltage regulator RT9193, a common cathode diode, a light emitting diode, a power switch, a battery interface; a linear charge management controller MCP73831, a pin 1 and a 2 pin are connected in series, and the power terminal and the capacitor end are connected. The other end of the capacitor is grounded to achieve filtering; the 3-pin series resistor and the LED are connected in series with the 4-pin grounding, and the 6-pin is connected to the 7-pin and 8-pin in series to achieve filtering and common cathode diode to meet the charging and power supply simultaneously. The LED is used as the charging indicator; the power switch realizes the switch of the virtual mouse; the battery interface is used to connect the battery, the voltage regulator RT9193 and the peripheral circuit form the voltage regulator circuit, the voltage regulator RT9193 has 1 pin and two parallel capacitors, and the resistor One end is connected, the other end of the resistor is connected to the power terminal to achieve filtering, and the second leg is connected with two parallel capacitors for filtering.